Improvement in vehicle-axles



E. D. IVES. M Vehicle-Axle.

No. 216,276. Patented June 10, I879.

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ELLSWORTH D. IVES, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN VEHICLE-AXLES.

Specification forming part of Letters Patent No. 216,276, dated June 10,1879 applicationfiled April 3,

To all whom it may concern:

Be it known that I, ELLSWORTH D. Ivns. of Hartford, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements pertaining to Vehicle-Axles, of which the following is aspecification, reference being bad to the accompanying drawings, where-Figure 1 is a central longitudinal section of the axle-arm and axle-box.Fig.2 is a partial central longitudinal section of the axlebox alone.

My invention has for one object the pre vention of the rattling of thewheel on the axle, which is largely caused by an up-anddown motion ofthe box, there being space between the axle and box from wear or otherreasons; and consists in making upon the arm of the axle a conicalflange, which shall fit into a corresponding conical recess in theaxlebox, or vice versa.

It has for another object the prevention of sand and dirt fromgettinginto the axle-boxan object subserved somewhat by the constructionalready mentioned, and aided therein by a chamber made in the surface ofthe axle like to an annular groove, except that it is not entirelycontinuous, but has a bridge or partition in it acting on the innersurface of the axle-box with a scraping action.

Referring now to the drawings, the letter a represents the axle-arm; b,the axle-box, and c aportion of the main axle. At the inner end of theaxle-arm is located the conical recess to, with its mouth opening towardthe outer end of the axle-arm. On the axle-box is a conical flange, I),fitting to said conical recess a.

It will be seen that when the nut c on the end of the axle-arm, andwhich holds the box to place, is screwed to its seat, the flange on theaxle-box fits into the conical recess in or 011 the axle-arm, preventingall upward or downward play of the box on the axle.

A washer, d, may well be used between the surfaces of the flange and therecess to prevent undue wear of the parts.

Just back of the recess a is located a groove, f, which but for thebridge or partition 9 would be annular. This groove is for the purposeof collecting such dirt as may work in and prevent its access to therecess and flange;

It will be observed that the recess a is formed in metal, and that theflange b is also formed in metal. This is essential to attain andmaintain the proper closeness of fit of the parts. I

The recess a is described as having its mouth toward the outer end ofthe axle-arm. This is essential to protect the meeting surfaces of therecess and flange from dust and dirt as far as may be, it being evidentthat if the recess had its mouth toward the inner end of the axle-armdirt would much more readily work into this joint.

I am aware that axles have heretofore been made having a recess in acollar thereon, with its mouth opening toward the outer end of theaxle-arm, the upper or outer side of this reoess being substantiallyparallel to the sur-. face of the axle, and the box having acorresponding projection fitting to this recess, and such a constructionI do not claim.

I claim as my improvement- 1. The metallic axle-arm a, bearing theconical recess a, formed in metal and opening toward the outer end ofthe axle-arm, in combination with the metallic axle-box 1), bearing themetallic conical flange Z), all substantially as described, and for thepurposes set forth.

2. The combination of the axle-arm a, hearing the outwardlyopeningconical recess a, the axle-box 1), bearing the conical flange b, and thegroove f, provided with the bridge 9, all substantially as described,and for the purpose set forth. I

ELLSWORTH D. IVES. Witnesses: WILLIAM E. SnuoNDs, ROBERT F. GAYLORD.

